The metal didn’t just weaken, as the official story claims.
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9/11 WTC Meteorites Molten Iron Concrete

biosemiotician
Published on Nov 10, 2010
Images corroborating the high temperatures and the molten iron/steel at the macro scale.
Taken from:
http://www.youtube.com/watch?v=W8yirB…
and
http://www.youtube.com/watch?v=U9nE37…
Related:
http://www.youtube.com/watch?v=5q5gga…
At the micro scale we have found microns of droplets of molten iron/steel:
http://www.youtube.com/watch?v=UsoLm6…